Do what you can to make sure your evergreens are ever-green. With a continuous supply of nutrients below the surface, Jobe’s Evergreen Tree Fertilizer Spikes can help enhance your yard with thriving trees all season. This slow-release formula works at your trees’ active roots – just insert around the drip line of each tree. It’s safe, free of any wasteful runoff, and easy to use – no mixing or measuring involved.